US5209209A - Device at intake systems for internal combustion engines - Google Patents
Device at intake systems for internal combustion engines Download PDFInfo
- Publication number
- US5209209A US5209209A US07/909,647 US90964792A US5209209A US 5209209 A US5209209 A US 5209209A US 90964792 A US90964792 A US 90964792A US 5209209 A US5209209 A US 5209209A
- Authority
- US
- United States
- Prior art keywords
- channel
- exhaust
- engine
- connection flange
- intake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10078—Connections of intake systems to the engine
- F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M23/00—Apparatus for adding secondary air to fuel-air mixture
- F02M23/001—Apparatus for adding secondary air to fuel-air mixture built into a flange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/18—Thermal insulation or heat protection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/36—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for adding fluids other than exhaust gas to the recirculation passage; with reformers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
- F02M26/44—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which a main EGR passage is branched into multiple passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1824—Number of cylinders six
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention refers to a device at an intake system for internal combustion engines having elongated inlet manifolds to the engine cylinders, and where a return conduit for exhaust gases is provided between the exhaust side and the intake side of the engine, said return conduit being provided with a valve controlled by the engine speed or the like, whereby a connection flange is provided between the engine block and the intake manifolds, said connection flange being equipped with through openings for intake air to the engine cylinders, and with an exhaust channel arranged along the edge portions of the connection flange in the flange material, which exhaust channel via said valve is connectable to the exhaust side of the engine and along its extension being equipped with branch conduits, which communicate with the different through openings.
- Such return of hot exhaust gases to the intake side of the engine is desired for reducing the combustion speed of the engine at certain operation conditions in order hereby to reduce the exhaust emissions at prevailing operation conditions.
- GB-A-2 191 244 relates to such an exhaust gas recirculation system, where a spacer or connection flange is provided between the inlet manifold and the cylinder head, said spacer having air/gas flow passages extending therethrough and distribution passages for recirculated exhaust gases surrounding said air/gas flow passages and having inlet ports to said passages, the exhaust gas flow being controlled by a valve.
- the purpose of the present invention is to provide a device, which in a simple and efficient manner improves the distribution of the return of the exhaust gases and eliminates those problems thus that plastic tubes can be used without problems. This has been achieved by the features defined in claim 1.
- FIG. 1 shows schematically an intake system for a six cylinder internal combustion engine equipped with a device in accordance with the invention
- FIG. 2 is a cross section through a portion of the device according to FIG. 1,
- FIG. 3 shows a section along line III--III in FIG. 2,
- FIG. 4 is a section along line IV--IV in FIG. 2.
- FIG. 1 is schematically shown an intake system for a six cylinder internal combustion engine, where the six cylinders are intimated with numerals 1-6 in an engine block 10.
- the engine cylinders are supplied with air via an outlet pipe 11 from a not shown air filter, and the air from the outlet pipe, which is equipped with a throttle valve 12 is distributed in a header space 13.
- Elongated inlet manifolds 14 extend from this head space 13 to the engine block 10.
- the elongated inlet manifolds 14 are made from plastic material and are connected to the engine cylinders via a connection flange 16. By means of this connection flange, which is preferably produced in aluminum by pressure casting, the ends of the plastic tubes will be spaced somewhat from the hot engine block 10.
- connection flange 16 From the exhaust side of the engine is connected an exhaust conduit 17 to the connection flange 16 via a valve 18, which is controlled by the engine speed or by other engine parameters.
- An open air conduit 19 is further connected to the interior of the connection flange 16, and this air conduit has its opposite end connected to the outlet tube 11 before the valve 12.
- FIG. 2 is shown the interior of the connection flange 16 in cross section and as can be seen the flange incorporates a number of internal channels 17' and 19', whereby the flange 16, which is penetrated by openings 14' for the intake air from the different intake manifolds 14 at the sides of these six openings 14', one of which is shown in FIG. 2, at each side of the row of openings has a mainly H-shaped cross section, whereby an exhaust gas channel 17' is arranged between the upper shanks of the H-profiles shown in the drawing, which exhaust channel via the valve 18 in FIG. 1, may be connected to the exhaust side of the engine.
- FIG. 3 which is a cross section along line III--III in FIG.
- the exhaust channel 17' extends along the entire length of the flange and along three sides thereof, and it projects via branch conduits 20 into the openings 14'.
- the branch conduits 20 thereby are arranged alternately thus that the first branch conduit as seen in the direction of flow of the exhaust channel, will be connected to the second opening 14', the second branch conduit to the fourth opening etcetera, thus that the fifth and sixth branch conduits, as seen in the direction of flow, are connected to the third and to the first opening respectively.
- the hot exhaust channel 19' is arranged in direct contact with the outside of the wall of the engine block 10, whereas the intake tube 14 as well as the air channel 19' are turned towards a less hot end wall 23, which closes the side of the connection flange facing away from the engine block.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Characterised By The Charging Evacuation (AREA)
- Exhaust Silencers (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9102158A SE502371C2 (en) | 1991-07-10 | 1991-07-10 | Device for suction engine combustion systems |
Publications (1)
Publication Number | Publication Date |
---|---|
US5209209A true US5209209A (en) | 1993-05-11 |
Family
ID=20383317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/909,647 Expired - Lifetime US5209209A (en) | 1991-07-10 | 1992-07-07 | Device at intake systems for internal combustion engines |
Country Status (5)
Country | Link |
---|---|
US (1) | US5209209A (en) |
EP (1) | EP0523029B1 (en) |
AT (1) | ATE115240T1 (en) |
DE (1) | DE69200818T2 (en) |
SE (1) | SE502371C2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5325828A (en) * | 1992-08-31 | 1994-07-05 | Hitachi, Ltd. | Air intake arrangement for internal combustion engine |
US6220233B1 (en) | 1999-10-13 | 2001-04-24 | Caterpillar Inc. | Exhaust gas recirculation system having variable valve timing and method of using same in an internal combustion engine |
USRE37269E1 (en) * | 1992-08-31 | 2001-07-10 | Hitachi, Ltd. | Air intake arrangement for internal combustion engine |
US20110315129A1 (en) * | 2010-06-25 | 2011-12-29 | Mazda Motor Corporation | Exhaust gas recirculation device of engine |
US20160258393A1 (en) * | 2015-03-06 | 2016-09-08 | Polaris Industries Inc. | Supplementary air assembly for an engine |
CN106438123A (en) * | 2016-09-14 | 2017-02-22 | 浙江吉利新能源商用车有限公司 | Gas inflow heating device and method for engine |
US11320215B2 (en) | 2019-06-24 | 2022-05-03 | Denso International America, Inc. | Radiator including thermal stress countermeasure |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757986A1 (en) * | 1997-12-24 | 1999-07-01 | Mann & Hummel Filter | Intake device for an internal combustion engine |
EP2218896B1 (en) | 2009-02-16 | 2012-04-04 | Caterpillar Motoren GmbH & Co. KG | A turbocharged engine with exhaust gas recycling |
FR3054611B1 (en) * | 2016-08-01 | 2018-08-17 | Peugeot Citroen Automobiles Sa | PLATE FOR MIXING A RECIRCULATED EXHAUST GAS FLOW WITH AN INTAKE GAS FLOW FOR A THERMAL ENGINE |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720196A (en) * | 1952-08-19 | 1955-10-11 | Wolf Otto John | Apparatus for admitting fluid materials to manifolds of internal combustion engines |
SE349846B (en) * | 1968-07-04 | 1972-10-09 | Brico Eng | |
SE386713B (en) * | 1970-08-05 | 1976-08-16 | Atox Trust Reg | DEVICE FOR CONTROLLED EXHAUST OF EXHAUST TO THE INTAKE PIPE IN AN COMBUSTION ENGINE |
US4031867A (en) * | 1974-12-28 | 1977-06-28 | Fuji Jukogyo Kabushiki Kaisha | Internal combustion engine combustion process |
US4262639A (en) * | 1978-08-10 | 1981-04-21 | Toyota Jidosha Kogyo Kabushiki Kaisha | Intake system of a multi-cylinder internal combustion engine |
US4304210A (en) * | 1979-05-15 | 1981-12-08 | Nissan Motor Co., Ltd. | System and method for controlling EGR in internal combustion engine |
US4361126A (en) * | 1979-09-08 | 1982-11-30 | Robert Bosch Gmbh | Fuel injection valve |
US4367719A (en) * | 1980-03-03 | 1983-01-11 | Nissan Motor Co., Ltd. | Cross-flow type internal combustion engine having an exhaust gas recirculation system |
US4517951A (en) * | 1982-08-31 | 1985-05-21 | Honda Giken Kogyo Kabushiki Kaisha | Intake manifold apparatus in multi-cylinder engine |
US4693226A (en) * | 1986-06-02 | 1987-09-15 | Ford Motor Company | EGR control system |
US4867109A (en) * | 1976-11-26 | 1989-09-19 | Etsuhiro Tezuka | Intake passage arrangement for internal combustion engines |
US5014654A (en) * | 1989-02-14 | 1991-05-14 | Nissan Motor Company, Ltd. Of No. 2 | Intake manifold for internal combustion engine |
US5046475A (en) * | 1990-09-14 | 1991-09-10 | Thompson Devices, Inc. | Emission control device for carbureted engines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4169471A (en) * | 1975-01-16 | 1979-10-02 | Paul August | Apparatus for the preparation of fuel mixtures for carburetors |
DE3501923A1 (en) * | 1985-01-22 | 1986-07-24 | Glotur Trust, Vaduz | Device for the reduction of poison gases in the exhaust from internal combustion engines |
FR2655382B1 (en) * | 1989-12-04 | 1992-04-17 | Peugeot | DEVICE FOR INTRODUCING ADDITIONAL GAS, SUCH AS AIR, INTO AN INTERNAL COMBUSTION ENGINE AND ENGINE EQUIPPED WITH SUCH A DEVICE. |
-
1991
- 1991-07-10 SE SE9102158A patent/SE502371C2/en not_active IP Right Cessation
-
1992
- 1992-07-07 US US07/909,647 patent/US5209209A/en not_active Expired - Lifetime
- 1992-07-09 EP EP92850172A patent/EP0523029B1/en not_active Expired - Lifetime
- 1992-07-09 DE DE69200818T patent/DE69200818T2/en not_active Expired - Fee Related
- 1992-07-09 AT AT92850172T patent/ATE115240T1/en not_active IP Right Cessation
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720196A (en) * | 1952-08-19 | 1955-10-11 | Wolf Otto John | Apparatus for admitting fluid materials to manifolds of internal combustion engines |
SE349846B (en) * | 1968-07-04 | 1972-10-09 | Brico Eng | |
SE386713B (en) * | 1970-08-05 | 1976-08-16 | Atox Trust Reg | DEVICE FOR CONTROLLED EXHAUST OF EXHAUST TO THE INTAKE PIPE IN AN COMBUSTION ENGINE |
US4031867A (en) * | 1974-12-28 | 1977-06-28 | Fuji Jukogyo Kabushiki Kaisha | Internal combustion engine combustion process |
US4867109A (en) * | 1976-11-26 | 1989-09-19 | Etsuhiro Tezuka | Intake passage arrangement for internal combustion engines |
US4262639A (en) * | 1978-08-10 | 1981-04-21 | Toyota Jidosha Kogyo Kabushiki Kaisha | Intake system of a multi-cylinder internal combustion engine |
US4304210A (en) * | 1979-05-15 | 1981-12-08 | Nissan Motor Co., Ltd. | System and method for controlling EGR in internal combustion engine |
US4361126A (en) * | 1979-09-08 | 1982-11-30 | Robert Bosch Gmbh | Fuel injection valve |
US4367719A (en) * | 1980-03-03 | 1983-01-11 | Nissan Motor Co., Ltd. | Cross-flow type internal combustion engine having an exhaust gas recirculation system |
US4517951A (en) * | 1982-08-31 | 1985-05-21 | Honda Giken Kogyo Kabushiki Kaisha | Intake manifold apparatus in multi-cylinder engine |
US4693226A (en) * | 1986-06-02 | 1987-09-15 | Ford Motor Company | EGR control system |
GB2191244A (en) * | 1986-06-02 | 1987-12-09 | Ford Motor Co | An exhaust gas recirculation system for an i.c. engine |
US5014654A (en) * | 1989-02-14 | 1991-05-14 | Nissan Motor Company, Ltd. Of No. 2 | Intake manifold for internal combustion engine |
US5046475A (en) * | 1990-09-14 | 1991-09-10 | Thompson Devices, Inc. | Emission control device for carbureted engines |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5325828A (en) * | 1992-08-31 | 1994-07-05 | Hitachi, Ltd. | Air intake arrangement for internal combustion engine |
USRE37269E1 (en) * | 1992-08-31 | 2001-07-10 | Hitachi, Ltd. | Air intake arrangement for internal combustion engine |
US6220233B1 (en) | 1999-10-13 | 2001-04-24 | Caterpillar Inc. | Exhaust gas recirculation system having variable valve timing and method of using same in an internal combustion engine |
US20110315129A1 (en) * | 2010-06-25 | 2011-12-29 | Mazda Motor Corporation | Exhaust gas recirculation device of engine |
US9010304B2 (en) * | 2010-06-25 | 2015-04-21 | Mazda Motor Corporation | Exhaust gas recirculation device of engine |
US20160258393A1 (en) * | 2015-03-06 | 2016-09-08 | Polaris Industries Inc. | Supplementary air assembly for an engine |
US10247148B2 (en) * | 2015-03-06 | 2019-04-02 | Polaris Industries Inc. | Supplementary air assembly for an engine |
CN106438123A (en) * | 2016-09-14 | 2017-02-22 | 浙江吉利新能源商用车有限公司 | Gas inflow heating device and method for engine |
US11320215B2 (en) | 2019-06-24 | 2022-05-03 | Denso International America, Inc. | Radiator including thermal stress countermeasure |
Also Published As
Publication number | Publication date |
---|---|
DE69200818T2 (en) | 1995-06-08 |
SE9102158L (en) | 1993-01-11 |
EP0523029A3 (en) | 1993-05-19 |
ATE115240T1 (en) | 1994-12-15 |
SE9102158D0 (en) | 1991-07-10 |
EP0523029B1 (en) | 1994-12-07 |
DE69200818D1 (en) | 1995-01-19 |
SE502371C2 (en) | 1995-10-09 |
EP0523029A2 (en) | 1993-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6116026A (en) | Engine air intake manifold having built-in intercooler | |
US7581533B1 (en) | Three mode cooler for exhaust gas recirculation | |
US4643136A (en) | Inlet system for internal combustion engine | |
US20020043254A1 (en) | Engine cylinder head | |
US7171805B2 (en) | Deflector style exhaust manifold | |
US5979421A (en) | Cylinder head EGR system | |
US5690081A (en) | Cylinder head for a liquid-cooled multi-cylinder internal combustion engine | |
US4488531A (en) | Plural intake system for supercharged engine | |
US5209209A (en) | Device at intake systems for internal combustion engines | |
US4867109A (en) | Intake passage arrangement for internal combustion engines | |
CA1142404A (en) | Cross-flow type internal combustion engine having an exhaust gas recirculation system | |
US6230696B1 (en) | Internal combustion engine, especially diesel-internal combustion engine | |
JPH08193543A (en) | Multicylinder type internal combustion engine | |
US6089212A (en) | Internal combustion engine | |
JP2748327B2 (en) | Exhaust pipe system for a supercharged internal combustion engine | |
KR0173355B1 (en) | Intake manifold unit of an internal combustion engine | |
CN108590903A (en) | V-type multi-cylinder engine air intake duct system | |
JP2000008968A (en) | Internal combustion engine exhaust gas recirculation system | |
JPH07259657A (en) | Exhaust gas recirculating device of v-engine | |
US4962735A (en) | Intake system for multi-cylinder internal combustion engines | |
WO1999060259A1 (en) | Arrangement for exhaust gas recirculation and internal combustion engine | |
US6367440B1 (en) | Air-intake tube system for internal combustion engines | |
US11982251B2 (en) | Air supply device with intake pipes that overlap in an air chamber, internal combustion engine with an air supply device, and motor vehicle | |
JPH0740659Y2 (en) | Intake passage structure for variable intake control of internal combustion engine | |
JPH02176115A (en) | Intake control device for internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AB VOLVO, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:KARLSSON, JAN;DAHLGREN, JAN;REEL/FRAME:006226/0491 Effective date: 19920807 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |